CN103671995A - Two-piston type axial flow regulating valve - Google Patents
Two-piston type axial flow regulating valve Download PDFInfo
- Publication number
- CN103671995A CN103671995A CN201310724162.5A CN201310724162A CN103671995A CN 103671995 A CN103671995 A CN 103671995A CN 201310724162 A CN201310724162 A CN 201310724162A CN 103671995 A CN103671995 A CN 103671995A
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- Prior art keywords
- valve
- valve body
- guide sleeve
- axial flow
- piston type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/316—Guiding of the slide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/36—Features relating to lubrication
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a two-piston type axial flow regulating valve which comprises valve bodies. The valve bodies comprise a right valve body, a left valve body and a middle valve body. The middle valve body is arranged in a valve body shell composed of the right valve body and the left valve body. The middle valve body comprises a valve cage, a valve cylinder, a transmission valve rod, a connecting rod, a bearing, a guide sleeve, a valve seat, a sealing ring and a valve cover. The transmission valve rod is installed in the bearing, one end of the transmission valve rod is fixedly connected with the valve cylinder through the connecting rod, the other end of the transmission valve rod is inserted into the guide sleeve, and the guide sleeve is fixedly inserted into an inner hole of the middle valve body. The sealing ring installed in the valve seat and the valve cage are assembled to be a sealing assembly with which the valve cylinder is sleeved, one end of the assembly is inserted into the middle valve body, and the other end of the assembly is fixedly connected with the left valve body. A grease filling hole channel and a drainage hole channel are formed in the valve bodies, and a grease filling valve and a drainage valve are arranged respectively. The two-piston type axial flow regulating valve is good in stability, long in service life, good in sealing performance, flexible in emergency treatment and convenient to use.
Description
Technical field
The present invention relates to a kind of double piston type axial flow modulating valve.
Background technique
Modulating valve is mainly used in oil, Gas Industry.Ta Yu actuator is connected, and by receiving remote control signal, the actions such as adjustment valve port opening realize is carrying, storing medium, and the object that the procedure parameters such as the flow in distribution automatic system, pressure are controlled, belongs to automatic control technology field.
Modulating valve technology is introduced innovation by continuous, and according to the rich experiences of implementing, in the research and development of axial flow control valve, constantly improves.To existing axial flow control valve, carry out the explanation of technology pluses and minuses below:
Modulating valve mainly consists of valve body, stuffing box gland, valve rod, guide sleeve, valve cage, valve seat, valve cylinder, aligning cover, guide pin bushing flange, valve gap etc.
Advantage: 1, valve body adopts forged steel, easy to manufacture, safe and reliable; 2, valve cylinder front end arranges core-regulating mechanism, reduces part concentricity and assembly precision, and manufacture difficulty is moderate; 3, adopt tube-in-tube structure, valve inner part stress balance, actuator's torque demand is low; 4, self-energized seal design, has improved leakage class; 5, axially symmetric shape runner, fluid resistance coefficient is little, consuming little energy, negotiability is strong, has alleviated noise, resonance and cavitation phenomenons.
Shortcoming: 1, valve base sealing structure is similar to Ge Laiquan, relies on the pre-pressing force of O type circle to realize sealing, and small-bore high pressure sealing in being applicable to, is not suitable for bigbore high pressure sealing, and high pressure adaptive capacity is limited; 2, actuate valve stem relies on oblique mechanism that thrust is passed to transmission valve rod, but transmission stem diameter is little, is semi-circle structure simultaneously, little with the area of contact of guide sleeve, unit pressure is large, easily causes guide sleeve and transmission stem wear, cause fluid to leak, working life is limited; 3, configuration breathing helmet and pump nozzle, occur needing to keep in repair after fluid leaks outside at once.As valve is used to, under operating mode that requirement in a short time can not safeguard, cannot meet the demands, operating mode adaptive capacity is limited.
Summary of the invention
The object of the invention is to overcome the defect that prior art exists, provide a kind of good stability, long service life, good airproof performance and emergency processing flexibly, double piston type axial flow modulating valve easily.
The technical solution adopted for the present invention to solve the technical problems is: a kind of double piston type axial flow modulating valve, comprise described in valve body that valve body comprises right valve barrel, left valve barrel and center valve body, described center valve body is arranged in the valve housing that right valve barrel and left valve barrel form, described center valve body comprises valve cage, valve cylinder, actuate valve stem, transmission valve rod, connecting rod, supporting, guide sleeve, valve seat, seal ring and valve gap, the setting of described transmission valve rod is arranged in supporting, its one end is fixedly connected with valve cylinder by connecting rod, its the other end is inserted in guide sleeve, described guide sleeve is fixedly plugged in the endoporus of center valve body, described actuate valve stem is plugged in the coaxial aperture of valve gap, center valve body and guide sleeve, and coordinates with transmission valve rod, described valve seat interior installation seal ring and valve cage are assembled into black box and are sleeved on valve cylinder, and this assembly one end is inserted on center valve body, and its other end is fixedly connected with left valve barrel, on described valve body, be also provided with greasing duct and the duct of releasing, and grease pouring valve and bleeder valve are installed respectively.
According to another embodiment of the invention, further comprise that described supporting comprises internal support and external support, described internal support is placed in guide sleeve and guide sleeve is slidably connected, and described external support is fixedly connected with valve cylinder by connecting rod.
According to another embodiment of the invention, further comprise that described valve cylinder overlaps by aligning and aligning ring is fixedly assemblied on connecting rod.
According to another embodiment of the invention, further comprise that one end that described guide sleeve is placed in right valve barrel is also provided with stuffing box gland.
According to another embodiment of the invention, further comprise that described guide sleeve is fixedly connected on center valve body by guide pin bushing flange.
According to another embodiment of the invention, further comprise that described black box also comprises O type circle, described O type circle is arranged on the joint of valve cage and valve seat.
Beneficial effect: the invention solves the defect existing in background technique, the beneficial effect that adopts technological scheme of the present invention to bring mainly contains following aspect:
1, adopt double piston type driving mechanism, driving mechanism and motion are carried out separated, improved the force environment of guide sleeve and supporting, thereby promoted the stability of motions of valve, extended the working life of valve;
2, adopt valve seat balanced type sealing configuration, seal ring internal and external pressure balance, no matter caliber size, all can make seal ring inwall and valve cylinder outer wall remain sealing pre-pressing force, guarantees to seal;
3, adopt to leak emergency processing method, by increasing greasing hole and escape orifice, the processing that makes not shut down operating mode is more flexible, convenient, for user's field management is removed difficulties and alleviated sufferings.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation of two section type of the present invention;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the structural representation of 3 stops of the present invention;
Fig. 4 is valve seat balanced type sealed structural representation of the present invention;
Fig. 5 is leakage emergency processing structural representation of the present invention.
Embodiment
As Figure 1-5, a kind of double-piston axial flow modulating valve, comprise described in valve body that valve body comprises right valve barrel 1, left valve barrel 2 and center valve body 3, described center valve body 3 is arranged in the valve housing that right valve barrel 1 and left valve barrel 2 form, and described center valve body 3 comprises valve cage 9, valve cylinder 12, actuate valve stem 7, transmission valve rod 5, connecting rod 14, supporting 4, guide sleeve 6, valve seat 10, seal ring 11 and valve gap 16.
Medium is flowed into by valve body left side, and the metering hole of different inherent characteristic curves is set on valve cage.By actuate valve stem, thrust is passed to transmission valve rod, and drive thus the valve cylinder being connected with connecting rod in valve cage, to change position, regulate the orifice size of valve cage, the flow of control media or pressure, then flow out from valve body right side, enters downstream.
Technology point of the present invention is mainly reflected in following three aspects:
1, double piston type driving mechanism
The drive mechanism of double-piston axial flow modulating valve (two section type) in Fig. 1, comprising: supporting (piston) 4, transmission valve rod 5, guide sleeve 6, valve cage 9, valve cylinder (piston) 12, aligning cover 13 and connecting rod 14.The drive mechanism of double-piston axial flow modulating valve (3 stops) in Fig. 3, comprising: internal support (piston) 41, external support (piston) 42, transmission valve rod 5, guide sleeve 6, valve cage 9, valve cylinder (piston) 12, aligning cover 13, connecting rod 14.This structure is carried out separated by driving mechanism with motion, by transmission valve rod, coordinated with guide sleeve and change supporting (piston) into and coordinate with guide sleeve, changing semicircle cambered surface coordinates for the cooperation of full circle cambered surface, increase and coordinate area, reduce the specific pressure of unit area, improve force environment, thereby promoted the stability of motions of valve, extended its working life.
2, valve seat balanced type sealing configuration
As shown in Figure 4, valve seat balanced type sealing configuration comprises: left valve barrel 2, valve cage 9, valve seat 10, seal ring 11 and O type circle 19.Its working principle is to get through pore at the inlet end of valve seat 10, makes hydrodynamic pressure P can be passed to valve seat 10 right sides, O type circle 19 left sides.Now, the impacting force of O type circle 19 is P+p, this impacting force P+p and hydrodynamic pressure P are passed to inner side and the outside of seal ring 11 simultaneously, thereby guarantee that seal ring 11 has a pre-pressing force p=(P+p all the time)-P, thus the sealability of assurance seal ring 11 inwalls and valve cylinder 12 outer walls.
3, leak emergency processing structure
As shown in Figure 5, leaking emergency processing method is at failsafe valve, but due to various cause specifics, can not interrupt again in a short time that fluid is carried and a kind of function of adding.For realizing this function, need to configure bleeder valve 17 and grease pouring valve 18.Grease pouring valve is one-way valve, and bleeder valve is two-way valve.Concrete grammar is as follows:
When valve is normally worked, bleeder valve 17 is in opening state.When the sealing at supporting 4 places of valve is broken down, while leaking situation, the fluid of pressure P flows into driveshaft chamber 7, greasing duct 20 and the duct 21 of releasing.Driveshaft chamber 7 is enclosed cavity, and grease pouring valve 18 is one-way valve, so leak fluid will flow out from bleeder valve 17.As now needed, guarantee fluid conveying, screwing hermetic screw 22, guarantee that bleeder valve 17 is in closed condition, to tackle non-stop-machine demand.The method can guarantee the uninterrupted of medium transport effectively, facilitates site manager's maintenance arrangement, reduces due to the loss being brought by forced-stopping machine.
Should be appreciated that specific embodiment described above, only for explaining the present invention, is not intended to limit the present invention.The apparent variation of being extended out by spirit of the present invention or change are still among protection scope of the present invention.
Claims (6)
1. a double piston type axial flow modulating valve, comprise described in valve body that valve body comprises right valve barrel, left valve barrel and center valve body, described center valve body is arranged in the valve housing that right valve barrel and left valve barrel form, it is characterized in that: described center valve body comprises valve cage, valve cylinder, actuate valve stem, transmission valve rod, connecting rod, supporting, guide sleeve, valve seat, seal ring and valve gap, the setting of described transmission valve rod is arranged in supporting, its one end is fixedly connected with valve cylinder by connecting rod, its the other end is inserted in guide sleeve, and described guide sleeve is fixedly plugged in the endoporus of center valve body; Described actuate valve stem is plugged in the coaxial aperture of valve gap, center valve body and guide sleeve, and coordinates with transmission valve rod; Described valve seat interior installation seal ring and valve cage are assembled into black box and are sleeved on valve cylinder, and this assembly one end is inserted on center valve body, and its other end is fixedly connected with left valve barrel; On described valve body, be also provided with greasing duct and the duct of releasing, and grease pouring valve and bleeder valve are installed respectively.
2. double piston type axial flow modulating valve according to claim 1, is characterized in that: described supporting comprises internal support and external support, and described internal support is placed in guide sleeve and guide sleeve is slidably connected, and described external support is fixedly connected with valve cylinder by connecting rod.
3. double piston type axial flow modulating valve according to claim 1 and 2, is characterized in that: described valve cylinder overlaps by aligning and aligning ring is fixedly assemblied on connecting rod.
4. double piston type axial flow modulating valve according to claim 1, is characterized in that: one end that described guide sleeve is placed in right valve barrel is also provided with stuffing box gland.
5. double piston type axial flow modulating valve according to claim 1, is characterized in that: described guide sleeve is fixedly connected on center valve body by guide pin bushing flange.
6. double piston type axial flow modulating valve according to claim 1, is characterized in that: described black box also comprises O type circle, and described O type circle is arranged on the joint of valve cage and valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724162.5A CN103671995B (en) | 2013-12-25 | 2013-12-25 | Dual Piston axial flow regulates valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724162.5A CN103671995B (en) | 2013-12-25 | 2013-12-25 | Dual Piston axial flow regulates valve |
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| Publication Number | Publication Date |
|---|---|
| CN103671995A true CN103671995A (en) | 2014-03-26 |
| CN103671995B CN103671995B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310724162.5A Active CN103671995B (en) | 2013-12-25 | 2013-12-25 | Dual Piston axial flow regulates valve |
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| CN (1) | CN103671995B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847917A (en) * | 2015-05-14 | 2015-08-19 | 四川长仪油气集输设备股份有限公司 | Electric split axial-flow type regulating valve |
| CN105114649A (en) * | 2015-09-16 | 2015-12-02 | 吴忠仪表有限责任公司 | Double-orientation adjusting structure |
| CN106321935A (en) * | 2016-11-07 | 2017-01-11 | 四川中油乐仪能源装备制造股份有限公司 | Axial-flow type adjusting valve |
| CN107061834A (en) * | 2017-03-10 | 2017-08-18 | 伯特利阀门集团有限公司 | Built-in driving axial flow control valve |
| CN111561580A (en) * | 2019-02-14 | 2020-08-21 | 费希尔久安输配设备(成都)有限公司 | Axial flow control valve |
| CN113195943A (en) * | 2019-03-07 | 2021-07-30 | 格鲁纳股份公司 | Governing valve speed reduction drive mechanism |
| CN114215946A (en) * | 2021-12-17 | 2022-03-22 | 南通市电站阀门有限公司 | Axial-flow dynamic self-balancing regulating valve |
| CN116221454A (en) * | 2023-03-17 | 2023-06-06 | 东方电气集团东方电机有限公司 | A discharge and pressure regulating water inlet valve for a large hydraulic turbine and its application method |
| CN118235099A (en) * | 2021-10-14 | 2024-06-21 | 艾默生过程控制稳压器技术股份有限公司 | Regulator with improved adjustment |
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| CN2189243Y (en) * | 1994-04-04 | 1995-02-08 | 胜利石油管理局勘察设计研究院 | High pressure globe valve for water storage |
| US20030196698A1 (en) * | 2002-04-17 | 2003-10-23 | Metal Industries Research & Development Centre | Axial flow control valve |
| RU2004116207A (en) * | 2004-05-28 | 2006-02-27 | Общество с ограниченной ответственностью Научно-производственный центр "Анод" (RU) | AXIAL FLOW VALVE |
| CN101631977A (en) * | 2007-02-13 | 2010-01-20 | 莫克维尔德阀门公司 | Throttle valve |
| CN202371199U (en) * | 2011-12-19 | 2012-08-08 | 浙江石化阀门有限公司 | High pressure flat gate valve with flow guide hole |
| CN103090019A (en) * | 2013-02-06 | 2013-05-08 | 特瑞斯能源装备股份有限公司 | Regulating valve of axial flow sleeve |
-
2013
- 2013-12-25 CN CN201310724162.5A patent/CN103671995B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189243Y (en) * | 1994-04-04 | 1995-02-08 | 胜利石油管理局勘察设计研究院 | High pressure globe valve for water storage |
| US20030196698A1 (en) * | 2002-04-17 | 2003-10-23 | Metal Industries Research & Development Centre | Axial flow control valve |
| RU2004116207A (en) * | 2004-05-28 | 2006-02-27 | Общество с ограниченной ответственностью Научно-производственный центр "Анод" (RU) | AXIAL FLOW VALVE |
| CN101631977A (en) * | 2007-02-13 | 2010-01-20 | 莫克维尔德阀门公司 | Throttle valve |
| CN202371199U (en) * | 2011-12-19 | 2012-08-08 | 浙江石化阀门有限公司 | High pressure flat gate valve with flow guide hole |
| CN103090019A (en) * | 2013-02-06 | 2013-05-08 | 特瑞斯能源装备股份有限公司 | Regulating valve of axial flow sleeve |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847917B (en) * | 2015-05-14 | 2017-05-17 | 四川长仪油气集输设备股份有限公司 | Electric split axial-flow type regulating valve |
| CN104847917A (en) * | 2015-05-14 | 2015-08-19 | 四川长仪油气集输设备股份有限公司 | Electric split axial-flow type regulating valve |
| CN105114649A (en) * | 2015-09-16 | 2015-12-02 | 吴忠仪表有限责任公司 | Double-orientation adjusting structure |
| CN106321935A (en) * | 2016-11-07 | 2017-01-11 | 四川中油乐仪能源装备制造股份有限公司 | Axial-flow type adjusting valve |
| CN107061834B (en) * | 2017-03-10 | 2023-02-10 | 浙江伯特利科技股份有限公司 | Built-in driving axial-flow type regulating valve |
| CN107061834A (en) * | 2017-03-10 | 2017-08-18 | 伯特利阀门集团有限公司 | Built-in driving axial flow control valve |
| CN111561580A (en) * | 2019-02-14 | 2020-08-21 | 费希尔久安输配设备(成都)有限公司 | Axial flow control valve |
| CN111561580B (en) * | 2019-02-14 | 2023-08-29 | 费希尔久安输配设备(成都)有限公司 | Axial flow type control valve |
| CN113195943A (en) * | 2019-03-07 | 2021-07-30 | 格鲁纳股份公司 | Governing valve speed reduction drive mechanism |
| CN118235099A (en) * | 2021-10-14 | 2024-06-21 | 艾默生过程控制稳压器技术股份有限公司 | Regulator with improved adjustment |
| CN114215946A (en) * | 2021-12-17 | 2022-03-22 | 南通市电站阀门有限公司 | Axial-flow dynamic self-balancing regulating valve |
| CN114215946B (en) * | 2021-12-17 | 2023-12-26 | 南通市电站阀门有限公司 | Axial-flow type dynamic self-balancing regulating valve |
| CN116221454A (en) * | 2023-03-17 | 2023-06-06 | 东方电气集团东方电机有限公司 | A discharge and pressure regulating water inlet valve for a large hydraulic turbine and its application method |
| CN116221454B (en) * | 2023-03-17 | 2025-09-26 | 东方电气集团东方电机有限公司 | A discharge pressure regulating water inlet valve for large hydraulic turbine and its use method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103671995B (en) | 2016-06-08 |
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Effective date of registration: 20160506 Address after: 213001 Jiangsu province Changzhou new North River Road No. 22 Applicant after: Terrence Energy Co., Ltd. Applicant after: Therese (Beijing) Fluid Technology Co., Ltd. Address before: 100000, Beijing, Zhongguancun science and Technology Park, Tongzhou Park, Jinqiao Technology Industrial base, 1 north two street, King Sheng, Tongzhou District Applicant before: Teruisixin force (Beijing) Fluid Technology Co. Ltd. |
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Effective date of registration: 20201117 Address after: 213000 Jiangsu province Changzhou new North River Road No. 22 Patentee after: TERRENCE ENERGY Co.,Ltd. Address before: 213001 Jiangsu province Changzhou new North River Road No. 22 Patentee before: TERRENCE ENERGY Co.,Ltd. Patentee before: TERRENCE (BEIJING) FLUID SCIENCE & TECHNOLOGY Co.,Ltd. |